300 BLK or .450

300 blk ammo is as cheap as $11.08 a box!

70 grain TSX works fine on deer. :slight_smile:

Check your state regs.

I’d never discourage someone for buying a gun/upper because they want something.

have fun.

Before this thread I had never even heard of or seen the .450, I thought you were talking about the .458 SOCOM. I’d have to agree with the majority and say get the .300 Blackout. The cartridge is wildly gaining popularity and is becoming relatively easy to find in mom and pop shops (for a damn good price.)

The 450 will do much better for hunting, the 300 has less power than a 7.62x39